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Brennand Roper M, Vissink A, Dudding T, Pollard A, Gareb B, Malevez C, Balshi T, Brecht L, Kumar V, Wu Y, Jung R. Long-term treatment outcomes with zygomatic implants: a systematic review and meta-analysis. Int J Implant Dent 2023; 9:21. [PMID: 37405545 DOI: 10.1186/s40729-023-00479-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 05/09/2023] [Indexed: 07/06/2023] Open
Abstract
PURPOSE The purpose of this study was to perform a systematic review with meta-analysis on the long-term survival rates of zygomatic implants (ZI). ZI success, prostheses survival and success, sinus pathology and patient reported outcomes were also investigated. METHODS Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) guidelines were followed. Embase and OvidMedline databases were searched alongside the grey literature. The systematic review was recorded in PROSPERO (CRD42022358024). Studies reporting titanium/titanium alloy ZI survival data, ZI-supported prosthesis data, ZIs directly compared to any other implant therapy including grafted sites, a minimum follow-up time of 3 years and a minimum number of 10 patients were included. All study designs were considered if they met the inclusion criteria. Studies not involving ZIs, ZIs not made from titanium/titanium alloy, a follow-up time of < 3 years or < 10 patients, animal studies and in vitro studies were excluded. Long-term follow-up has not been defined in the literature. A minimum of 3 years follow-up was considered acceptable to capture survival after initial healing, alongside in-function prosthesis data via delayed or immediate load protocols. ZI success, was predominantly defined as ZI survival without biological or neurological complications. Meta-analyses were performed for ZI survival, ZI failure incidence, ZI success, loading protocol, prosthesis survival, and prevalence of sinusitis using random effects models. Descriptive analysis was used for ZI success, prosthesis success and patient reported outcome measures. RESULTS Five hundred and seventy-four titles were identified, of which 18 met the inclusion criteria. Eligible studies included 1349 ZIs in 623 patients. Mean follow-up period was 75.4 months (range 36-141.6). The mean survival of ZIs was 96.2% [95% CI: 93.8; 97.7] at 6 years. Mean survival for delayed loading was 95% [95% CI: 91.7; 97.1] and 98.1% [95% CI: 96.2; 99.0] for immediate loading (p = 0.03). Annual incidence rate of ZI failure was 0.7% [95% CI 0.4; 1.0]. Mean ZI success was 95.7% [95% CI 87.8; 98.6]. Mean prosthesis survival was 94% [95% CI 88.6; 96.9]. Sinusitis prevalence was 14.2% [95% CI 8.8; 22.0] at 5 years. Patients' reported increased satisfaction with ZIs. CONCLUSIONS ZIs have long-term survival comparable to conventional implants. Immediate loading showed a statistically significant increase in survival over delayed loading. Prosthesis survival was similar to that of prostheses supported by conventional implants, with similar complications. Sinusitis was the most frequently encountered biological complication. Patients reported improved outcome measures with ZI use.
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Affiliation(s)
- Matthew Brennand Roper
- Department of Restorative Dentistry, University Hospitals Bristol and Weston Foundation Trust, Bristol Dental Hospital, Lower Maudlin Street, Bristol, BS1 2LY, UK.
| | - Arjan Vissink
- Department of Oral and Maxillofacial Surgery, Universtitair Medisch Centrum Gronigen, Groningen, The Netherlands
| | - Tom Dudding
- Department of Restorative Dentistry, University Hospitals Bristol and Weston Foundation Trust, Bristol Dental Hospital, Lower Maudlin Street, Bristol, BS1 2LY, UK
| | - Alex Pollard
- Department of Restorative Dentistry, University Hospitals Bristol and Weston Foundation Trust, Bristol Dental Hospital, Lower Maudlin Street, Bristol, BS1 2LY, UK
| | - Barzi Gareb
- Department of Oral and Maxillofacial Surgery, Universtitair Medisch Centrum Gronigen, Groningen, The Netherlands
| | - Chantal Malevez
- Department of Oral and Maxillofacial Surgery, Clinique Saint-Jean, Brussels, Belgium
| | | | - Lawrence Brecht
- Division of Prosthodontics and Restorative Dentistry, NYC College of Dentistry, New York City, NY, USA
| | - Vinay Kumar
- Department of Oral and Maxillofacial Surgery, Uppsala University, Uppsala, Sweden
| | - Yiqun Wu
- Department of Oral Implantology, Second Dental Center, Ninth People's Hospital Affiliated with Shanghai Jaio Tong University, School of Medicine, Shanghai, China
| | - Ronald Jung
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
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Polido WD, Machado-Fernandez A, Lin WS, Aghaloo T. Indications for zygomatic implants: a systematic review. Int J Implant Dent 2023; 9:17. [PMID: 37391575 DOI: 10.1186/s40729-023-00480-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 05/09/2023] [Indexed: 07/02/2023] Open
Abstract
PURPOSE The purpose of this systematic review was to assess the evidence regarding the indications for placement of zygomatic implants to rehabilitate edentulous maxillae. MATERIAL AND METHODS A focused question using the PIO format was developed, questioning "in patients in need of an implant-supported rehabilitation of the edentulous maxillae, what are the indications for the use of zygomatic implants''. The primary information analyzed and collected was a clear description of the indication for the use of zygomatic implants. RESULTS A total of 1266 records were identified through database searching. The full-text review was conducted for 117 papers, and 10 were selected to be included in this review. Zygomatic implant indications were extreme bone atrophy or deficiency secondary to different factors. The quad zygoma concept (two zygomatic implants bilaterally placed and splinted) was applied to 107 patients, the classic zygoma concept (one zygomatic implant bilaterally placed and splinted to standard anterior implants) was used in 88 patients, and the unilateral concept (one zygomatic implant on one side, splinted with one or more conventional implants) was employed in 14 patients. CONCLUSIONS The main indication for the use of zygomatic implants was considered extreme maxillary bone atrophy, resulting from many factors. The clear definition of what was considered "extreme bone atrophy" is not uniquely defined in each paper. Further studies are needed to develop clear indications for zygomatic implants.
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Affiliation(s)
- Waldemar D Polido
- Department of Oral and Maxillofacial Surgery, Indiana University School of Dentistry, Indianapolis, USA.
| | | | - Wei-Shao Lin
- Department of Prosthodontics, Indiana University School of Dentistry, Indianapolis, USA
| | - Tara Aghaloo
- Section of Oral and Maxillofacial Surgery, UCLA School of Dentistry, Los Angeles, CA, USA
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Moraschini V, de Queiroz TR, Sartoretto SC, de Almeida DCF, Calasans-Maia MD, Louro RS. Survival and complications of zygomatic implants compared to conventional implants reported in longitudinal studies with a follow-up period of at least 5 years: A systematic review and meta-analysis. Clin Implant Dent Relat Res 2023; 25:177-189. [PMID: 36373779 DOI: 10.1111/cid.13153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 10/25/2022] [Accepted: 10/25/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND Zygomatic implants (ZI) have been frequently indicated to rehabilitate patients with extensive atrophies in alternatives to major bone reconstructions. It can be installed inside the maxillary sinus, called instrasinus zygomatic implant (IZI) or outside the maxillary sinus (EZI), depending on the surgery technique. OBJECTIVE To evaluate the survival and complication rates of ZI in longitudinal studies when compared with conventional implants (CI). METHODS An electronic search was performed in five databases and in Gray literature for articles published until April, 2022. The eligibility criteria comprised observational cohort studies (prospective or retrospective) and randomized clinical trials (RCTs) with at least 5 years of follow-up, reporting survival rate of ZI versus CI. A meta-analysis was conduct with 18 studies. RESULTS A total of 5434 implants (2972 ZI and 2462 CI) were analyzed in 1709 patients. The mean survival rate was 96.5% ± 5.02 and 95.8% ± 6.36 for ZI and CI, respectively (mean follow-up time of 78 months). There were observed no statistically significant between ZI and CI in prospective studies (risk ratio [RR] of 1.21; 95% confidence intervals [CIs]: 0.28 to 5.28; chi-squared [Chi2 ] = 11.37; I2 = 56%; degrees of freedom [df] = 5; z-score = 0.25; P = 0.80), retrospective studies IZI (RR of 1.29; 95% CIs: 0.52 to 3.23; Chi2 = 4.07; I2 = 2%; df = 4; z-score = 0.55; P = 0.58) and retrospective studies EZI (RR of 0.72; 95% CIs: 0.31 to 1.66; Chi2 = 1.99; I2 = 0%; df = 3; z-score = 0.78; P = 0.44). The biological complications most related to ZI was sinusitis, followed by infection and oroantral communication. CONCLUSION ZI have a high long-term survival rate (96.5% with a mean of 91.5 months of follow-up), showing no significant difference when compared with CI. The most prevalent biological complication is sinusitis, being most commonly to the IZI technique. This systematic review (SR) was registered in INPLASY under number INPLASY202280025.
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Affiliation(s)
- Vittorio Moraschini
- Department of Dental Research, School of Dentistry, Veiga de Almeida University, Rio de Janeiro, Brazil.,Department of Oral Surgery, School of Dentistry, Fluminense Federal University, Rio de Janeiro, Brazil
| | - Tiago Rocha de Queiroz
- Department of Oral Surgery, School of Dentistry, Fluminense Federal University, Rio de Janeiro, Brazil
| | | | | | | | - Rafael Seabra Louro
- Department of Oral Surgery, School of Dentistry, Fluminense Federal University, Rio de Janeiro, Brazil
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Maxillary Sinusitis as a Complication of Zygomatic Implants Placement: A Narrative Review. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12020789] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Aims: The aim of this review is to consider maxillary sinusitis as a complication of zygomatic implants placements. Maxillary sinusitis a common complication but in the literature there are no reviews that focus only on this condition and its possible treatment. This review was carried out with to highlight the main findings of the literature on this topic and to improve knowledge in this field. Methods: The search strategy resulted in 155 papers. After selection of the inclusion criteria only 11 papers were examined. From the papers these, 12.3% patients presented maxillary sinusitis but only four studies evaluated sinusitis (both clinical and radiological evaluation). The most common treatment used by the authors were antibiotics alone or combined with functional endoscopic sinus surgery (FESS). Results: The literature shows an absence of precise and shared guidelines diagnosis and post-operative follow-up, and of the treatment of maxillary sinusitis following zygomatic implantology. It has not been determined if the surgical placement of ZIs is better than the other techniques for treatment of the onset of maxillary sinusitis in the post-operative period. Conclusion: To date there are no shared protocols for maxillary sinusitis treatment. In our experience, and according to the literature in the presence of risk factors such as age, comorbidities, smoking, nasal septal deviation or other anatomical variants, we suggested that FESS is performed at the same time as placement of zygomatic implants.
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Rehabilitation of Atrophic Maxilla With Immediate Loading of Extrasinus Zygomatic Implant. J Craniofac Surg 2021; 33:e488-e491. [PMID: 34907950 DOI: 10.1097/scs.0000000000008411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 11/09/2021] [Indexed: 10/19/2022] Open
Abstract
ABSTRACT The aim of this case series was to evaluate the long-term success rate of immediate occlusal loading of extrasinus zygomatic dental implants after a 3-year follow-up. The sample consisted of 31 patients (mean age of 64 years) with atrophic maxillae rehabilitated with 1 to 4 extrasinus zygomatic implants, placed unilaterally or bilaterally. All the patients received complete implant-supported dental prostheses with immediate loading by associating zygomatic implants with conventional implants. None of the procedures were associated with bone grafts. During the 3-year period of follow-up in the present study, all the patients attended clinical sessions and underwent radiographic exams every 6 months. In total 55 zygomatic and 69 conventional implants were placed, where 1 zygomatic and 2 conventional implants were lost, representing success rates of 98.18% and 97.20%, respectively. None of the studied patients had signs of sinusitis or changes in the maxillary sinuses. All the patients showed occlusal contact on natural antagonist teeth or implant-supported dental prostheses. Therefore, it was concluded that the use of exteriorized zygomatic implants with immediate loading represented a feasible option with high success rates for the treatment of atrophic maxilla.
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Gutiérrez Muñoz D, Obrador Aldover C, Zubizarreta-Macho Á, González Menéndez H, Lorrio Castro J, Peñarrocha-Oltra D, Montiel-Company JM, Hernández Montero S. Survival Rate and Prosthetic and Sinus Complications of Zygomatic Dental Implants for the Rehabilitation of the Atrophic Edentulous Maxilla: A Systematic Review and Meta-Analysis. BIOLOGY 2021; 10:biology10070601. [PMID: 34209770 PMCID: PMC8301194 DOI: 10.3390/biology10070601] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/18/2021] [Accepted: 06/24/2021] [Indexed: 12/26/2022]
Abstract
Simple Summary Zygomatic dental implants have been proposed as an alternative to atrophic total edentulous maxillae rehabilitation with the necessity of bone grafting procedures. However, surgical, prosthetic, and maxillary sinus complications have been associated with this surgical procedure. Therefore, it is necessary to produce a systematic review and meta-analysis that provides evidence associated with the prognosis when using zygomatic dental implants as an alternative to atrophic total edentulous maxillae rehabilitation. Abstract The aim of this systematic review and meta-analysis was to analyze and compare the survival rate and prosthetic and sinus complications of zygomatic dental implants for the rehabilitation of the atrophic edentulous maxilla. Materials and methods: We conducted a systematic literature review and meta-analysis, based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) recommendations, of clinical studies that evaluated the survival rate and prosthetic and sinus complications of zygomatic dental implants for the rehabilitation of the atrophic edentulous maxilla. Four databases were consulted during the literature search: Pubmed–Medline, Scopus, Embase, and Web of Science. After eliminating duplicate articles and applying the inclusion criteria, 46 articles were selected for the qualitative analysis and 32 for the quantitative analysis. Results: Four randomized controlled trials, 19 prospective clinical studies, 20 retrospective studies, and 3 case series were included in the meta-analysis. Conventional dental implants failure (n = 3549) were seen in 2.89% (IC-95% 1.83–3.96%), while zygomatic dental implants failure (n = 1895) were seen in 0.69% (IC-95% 0.21–1.16%). The measure of the effect size used was the Odds Ratio, which was estimated at 2.05 with a confidence interval of 95% between 1.22 and 3.44 (z test = 2.73; p-value = 0.006). The failure risk of conventional dental implants is 2.1 times higher than that of zygomatic dental implants. Slight heterogeneity was determined in the meta-analysis between 23 combined studies (Q test = 32.4; p-value = 0.070; I2 = 32.1%). Prosthetic complications were recorded in 4.9% (IC-95% 2.7–7.3%) and mild heterogeneity was observed in a meta-analysis of 28 combined studies (Q test = 88.2; p-value = 0.001; I2 = 69.4%). Sinus complications were seen in 4.7% (IC-95% 2.8–6.5%) and mild heterogeneity was observed in a meta-analysis of 32 combined studies (Q test = 75.3; p-value = 0.001; I2 = 58.8%). Conclusions: The high survival rate and low prosthetic and sinus complications related to zygomatic dental implants suggest the use of zygomatic dental implants for the rehabilitation of the atrophic edentulous maxilla.
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Affiliation(s)
- David Gutiérrez Muñoz
- Department of Implant Surgery, Faculty of Health Sciences, Alfonso X el Sabio University, 28691 Madrid, Spain; (D.G.M.); (C.O.A.); (H.G.M.); (J.L.C.); (S.H.M.)
| | - Caterina Obrador Aldover
- Department of Implant Surgery, Faculty of Health Sciences, Alfonso X el Sabio University, 28691 Madrid, Spain; (D.G.M.); (C.O.A.); (H.G.M.); (J.L.C.); (S.H.M.)
| | - Álvaro Zubizarreta-Macho
- Department of Implant Surgery, Faculty of Health Sciences, Alfonso X el Sabio University, 28691 Madrid, Spain; (D.G.M.); (C.O.A.); (H.G.M.); (J.L.C.); (S.H.M.)
- Department of Surgery, Faculty of Medicine and Dentistry, University of Salamanca, 37008 Salamanca, Spain
- Correspondence:
| | - Héctor González Menéndez
- Department of Implant Surgery, Faculty of Health Sciences, Alfonso X el Sabio University, 28691 Madrid, Spain; (D.G.M.); (C.O.A.); (H.G.M.); (J.L.C.); (S.H.M.)
| | - Juan Lorrio Castro
- Department of Implant Surgery, Faculty of Health Sciences, Alfonso X el Sabio University, 28691 Madrid, Spain; (D.G.M.); (C.O.A.); (H.G.M.); (J.L.C.); (S.H.M.)
| | - David Peñarrocha-Oltra
- Department of Stomatology, Faculty of Medicine and Dentistry, University of Valencia, 46010 Valencia, Spain; (D.P.-O.); (J.M.M.-C.)
| | - José María Montiel-Company
- Department of Stomatology, Faculty of Medicine and Dentistry, University of Valencia, 46010 Valencia, Spain; (D.P.-O.); (J.M.M.-C.)
| | - Sofía Hernández Montero
- Department of Implant Surgery, Faculty of Health Sciences, Alfonso X el Sabio University, 28691 Madrid, Spain; (D.G.M.); (C.O.A.); (H.G.M.); (J.L.C.); (S.H.M.)
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Lorusso F, Conte R, Inchingolo F, Festa F, Scarano A. Survival Rate of Zygomatic Implants for Fixed Oral Maxillary Rehabilitations: A Systematic Review and Meta-Analysis Comparing Outcomes between Zygomatic and Regular Implants. Dent J (Basel) 2021; 9:dj9040038. [PMID: 33915748 PMCID: PMC8065623 DOI: 10.3390/dj9040038] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 03/16/2021] [Accepted: 03/22/2021] [Indexed: 12/15/2022] Open
Abstract
Background: Zygomatic implants have been proposed alone or in combination with premaxillary conventional implants for severe resorbed maxillary atrophy rehabilitation. The aim of the present investigation was to evaluate through a qualitative systematic review and meta-analysis the survival rate of zygomatic implants in conjunction with regular fixtures for maxillary rehabilitation. Methods: The article screening was conducted on the PubMed/Medline and EMBASE electronic databases according to the “Preferred Reporting Items for Systematic Reviews and Meta-Analyses” (PRISMA) guidelines. The scientific papers were included for qualitative analysis and risk-of-bias evaluation. Only the papers that included rehabilitation with zygomatic implants in combination with regular implants were considered for the meta-analysis comparative evaluation of the implant survival rate. Results: The paper search screened a total of 137 papers. After the initial screening, a total of 32 articles were considered for the qualitative analysis. There was a similar implant survival rate between zygomatic and premaxilla regular implants (p = 0.02; Z: 2.26). Conclusions: Zygomatic and conventional implants showed a high long-term survival rate for fixed maxillary rehabilitations, but few included studies reported the marginal bone loss after loading. Further studies are necessary to evaluate the pattern of marginal bone loss between zygomatic and conventional implants after long-term functional loading.
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Affiliation(s)
- Felice Lorusso
- Department of Innovative Technologies in Medicine & Dentistry and CAST, University of Chieti-Pescara, Via dei Vestini 31, 66100 Chieti, Italy; (F.L.); (F.F.)
| | | | - Francesco Inchingolo
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70121 Bari, Italy;
| | - Felice Festa
- Department of Innovative Technologies in Medicine & Dentistry and CAST, University of Chieti-Pescara, Via dei Vestini 31, 66100 Chieti, Italy; (F.L.); (F.F.)
| | - Antonio Scarano
- Department of Innovative Technologies in Medicine & Dentistry and CAST, University of Chieti-Pescara, Via dei Vestini 31, 66100 Chieti, Italy; (F.L.); (F.F.)
- Correspondence: ; Tel.: +39-0871-355-4084; Fax: +39-0871-355-4099
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Borgonovo A, Grandi T, Vassallo S, Signorini L. Extrasinus Zygomatic Implants for the Immediate Rehabilitation of the Atrophic Maxilla: 1-Year Postloading Results From a Multicenter Prospective Cohort Study. J Oral Maxillofac Surg 2020; 79:356-365. [PMID: 33160924 DOI: 10.1016/j.joms.2020.10.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 10/03/2020] [Indexed: 10/23/2022]
Abstract
PURPOSE The use of zygomatic implants is an alternative to major grafting procedures for the treatment of the atrophic posterior maxilla. However, only few studies reported solid and correct data about the use of extrasinus zygomatic implants. Starting from these considerations, this study aims to investigate the 1-year survival and success rates of extrasinus zygomatic implants immediately loaded in patients with severe atrophy of the posterior maxilla. METHODS Twenty-three consecutive patients fully edentoulus or with failing dentition in the upper arch and with a severe atrophy of the posterior maxilla were enrolled. All patients underwent prosthodontic rehabilitation with the application of implants in both anterior maxilla areas and zygomatic bone. All the zygomatic implants were inserted with an extrasinus path. Primary outcomes were prosthesis and implant failures. Secondary outcomes were complications, bleeding scores, probing pocket depths, and peri-implant marginal bone-level changes. A total of 98 implants were inserted. RESULTS During the 1-year follow-up, no implant failure was reported as well as no pain and/or no sinusitis were detected. No other significant events were reported, except for minor soft tissue and technical problems. A maxillary sinus membrane rupture occurred during the surgical phase in 4 (17.4%) patients, but healing was not compromised. Peri-implant mucositis was observed in 2 (8.7%) patients. Twelve months after surgery, average bone loss around conventional implants was 1.11 ± 0.23 mm. In addition, no peri-implant radiolucency was observed around zygomatic implants. Within the limits of this study, preliminary short-term data (1-year after loading) suggested that extrasinus zygomatic implants represent a predictable treatment option for the atrophic maxilla. Further follow-up data (≥5 years) are needed to confirm these results. CONCLUSIONS The present study supports the conclusion that extrasinus zygomatic implants for the immediate rehabilitation of the atrophic maxilla have high success rate with minimal or no complications.
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Affiliation(s)
- Andrea Borgonovo
- Private Practitioner, Department of Oral Rehabilitation, Istituto Stomatologico Italiano, Milan, Italy
| | | | | | - Luca Signorini
- Associate Professor Private Practitioner, Saint Camillus International University of Health Science; and Private Practice, Rome, Italy.
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Goker F, Grecchi E, Del Fabbro M, Grecchi F. Clinical outcome of 302 zygomatic implants in 110 patients with a
follow‐up
between 6 months and 7 years. Clin Implant Dent Relat Res 2020; 22:415-423. [PMID: 32291961 DOI: 10.1111/cid.12909] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 03/25/2020] [Accepted: 03/26/2020] [Indexed: 01/25/2023]
Affiliation(s)
- Funda Goker
- Department of Biomedical, Surgical and Dental Sciences University of Milano Milan Italy
| | - Emma Grecchi
- Department of Biomedical, Surgical and Dental Sciences University of Milano Milan Italy
| | - Massimo Del Fabbro
- Department of Biomedical, Surgical and Dental Sciences University of Milano Milan Italy
- IRCCS Orthopedic Institute Galeazzi Milan Italy
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Coppedê A, de Mayo T, de Sá Zamperlini M, Amorin R, de Pádua APAT, Shibli JA. Three-year clinical prospective follow-up of extrasinus zygomatic implants for the rehabilitation of the atrophic maxilla. Clin Implant Dent Relat Res 2017; 19:926-934. [PMID: 28703481 DOI: 10.1111/cid.12517] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 06/08/2017] [Accepted: 06/26/2017] [Indexed: 12/18/2022]
Abstract
BACKGROUND Placement of extrasinus zygomatic implants to support implant-supported rehabilitation is still controversial due to the scarcity of data. PURPOSE To evaluate the clinical outcomes of 94 extrasinus zygomatic implants, installed laterally to the maxillary sinus, for rehabilitation of the edentulous atrophic maxillae. MATERIALS AND METHODS A total of 42 patients (mean age 58 years) with severely atrophic maxillae were treated between November 2010 and July 2011, and followed up until July 2014. A total of 273 implants (94 zygomatic implants and 179 conventional implants) were used. The patients were followed in a standardized clinical and radiographic method. RESULTS During the 3-year study period, 1 zygomatic implant and 4 conventional implants failed, resulting in a survival rate of 98.9% and 97.7% respectively. All restorations with titanium-welded bars were installed either 3 days after surgery (immediate loading) or 6 months after surgery (delayed loading), and were successful until the last follow-up appointment, except for minor technical problems. No patient presented any type of sinus adverse event. No other significant occurrences were reported. CONCLUSION This 3-year clinical follow-up study indicates that extrasinus zygomatic implants represent predictable treatment option atrophic maxillae. Further longitudinal prospective clinical studies are necessary to confirm these results.
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Affiliation(s)
- Abilio Coppedê
- Department of Periodontology and Oral Implantology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil.,Brazilian Association of Odontology (ABO), Oral Implantology Clinic, Campinas, São Paulo, Brazil
| | - Thiago de Mayo
- Brazilian Association of Odontology (ABO), Oral Implantology Clinic, Campinas, São Paulo, Brazil
| | - Marcelo de Sá Zamperlini
- Brazilian Association of Odontology (ABO), Oral Implantology Clinic, Campinas, São Paulo, Brazil
| | - Rodolfo Amorin
- Brazilian Association of Odontology (ABO), Oral Implantology Clinic, Campinas, São Paulo, Brazil
| | - Ana Paula A T de Pádua
- Brazilian Association of Odontology (ABO), Oral Implantology Clinic, Campinas, São Paulo, Brazil
| | - Jamil Awad Shibli
- Department of Periodontology and Oral Implantology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil
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Simplifying the Treatment of Bone Atrophy in the Posterior Regions: Combination of Zygomatic and Wide-Short Implants-A Case Report with 2 Years of Follow-Up. Case Rep Dent 2016; 2016:5328598. [PMID: 27867669 PMCID: PMC5102717 DOI: 10.1155/2016/5328598] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Accepted: 10/11/2016] [Indexed: 11/17/2022] Open
Abstract
The rehabilitation of maxillary and mandibular bone atrophy represents one of the main challenges of modern oral implantology because it requires a variety of procedures, which not only differ technically, but also differ in their results. In the face of limitations such as deficiencies in the height and thickness of the alveolar structure, prosthetic rehabilitation has sought to avoid large bone reconstruction through bone grafting; this clinical behavior has become a treatment system based on evidence from clinical scientific research. In the treatment of atrophic maxilla, the use of zygomatic implants has been safely applied as a result of extreme technical rigor and mastery of this surgical skill. For cases of posterior mandibular atrophy, short implants with a large diameter and a combination of short and long implants have been recommended to improve biomechanical resistance. These surgical alternatives have demonstrated a success rate similar to that of oral rehabilitation with the placing of conventional implants, allowing the adoption of immediate loading protocol, a decrease in morbidity, simplification and speed of the treatment, and cost reduction. This case report presents complete oral rehabilitation in a patient with bilateral bone atrophy in the posterior regions of the maxilla and mandible with the goal of developing and increasing posterior occlusal stability during immediate loading.
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Molinero-Mourelle P, Baca-Gonzalez L, Gao B, Saez-Alcaide LM, Helm A, Lopez-Quiles J. Surgical complications in zygomatic implants: A systematic review. Med Oral Patol Oral Cir Bucal 2016; 21:e751-e757. [PMID: 27694789 PMCID: PMC5116118 DOI: 10.4317/medoral.21357] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2016] [Accepted: 07/03/2016] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND The use of zygomatic implants in the prosthetic rehabilitation of the patient with severe maxillary bone atrophy is another therapeutic alternative, not exempt from complications. The main objective of this review is to analyze and describe the most frequent surgical complications associated with the use of zygomatic implants. MATERIAL AND METHODS An electronic database search on PubMed, along with a manual search, without taking into account date nor language, was undertaken by two observers, selecting studies that comprised a study period from 6 to 12 months, any type of clinical trial, and series that included a follow-up and/or review period during the aforementioned margin, that mentioned at least two types of complications. RESULTS Out of the initial search that yielded 455 studies, 67 were considered potentially relevant for the present study, out of which 14 were finally selected. Out of the most frequent surgical complications, sinusitis (3,9%) and failure in osseointegration (2,44%) are highlighted. CONCLUSIONS The analysis of the results shows that the most frequent complications are sinusitis and failure in osseointegration of the zygomatic implant. However, a standardised data collection system for the data on complications is needed.
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Affiliation(s)
- P Molinero-Mourelle
- Departamento de Estomatología III, Medicina y Cirugía Bucofacial, Facultad de Odontología, Universidad Complutense de Madrid, Plaza de Ramón y Cajal, 3, 28040 Madrid,
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13
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Chrcanovic BR, Albrektsson T, Wennerberg A. Survival and Complications of Zygomatic Implants: An Updated Systematic Review. J Oral Maxillofac Surg 2016; 74:1949-64. [PMID: 27422530 DOI: 10.1016/j.joms.2016.06.166] [Citation(s) in RCA: 121] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 06/01/2016] [Accepted: 06/08/2016] [Indexed: 12/29/2022]
Abstract
PURPOSE To assess the survival rate of zygomatic implants (ZIs) and the prevalence of complications based on previously published studies. MATERIALS AND METHODS An electronic search of 3 databases was performed in December 2015 and was supplemented by manual searching. Clinical series of ZIs were included. Interval survival rate and cumulative survival rate (CSR) were calculated. The untransformed proportion of complications (sinusitis, soft tissue infection, paresthesia, oroantral fistulas) was calculated by considering the prevalence reported in the studies. RESULTS Sixty-eight studies were included, comprising 4,556 ZIs in 2,161 patients with 103 failures. The 12-year CSR was 95.21%. Most failures were detected within the 6-month postsurgical period. Studies (n = 26) that exclusively evaluated immediate loading showed a statistically lower ZI failure rate than studies (n = 34) evaluating delayed loading protocols (P = .003). Studies (n = 5) evaluating ZIs for the rehabilitation of patients after maxillary resections presented lower survival rates. The probability of presenting postoperative complications with ZIs was as follows: sinusitis, 2.4% (95% confidence interval [CI], 1.8-3.0); soft tissue infection, 2.0% (95% CI, 1.2-2.8); paresthesia, 1.0% (95% CI, 0.5-1.4); and oroantral fistulas, 0.4% (95% CI, 0.1-0.6). However, these numbers might be underestimated, because many studies failed to mention the prevalence of these complications. CONCLUSION ZIs present a high 12-year CSR, with most failures occurring at the early stages postoperatively. The main observed complication related to ZIs was sinusitis, which can appear several years after ZI installation surgery.
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Affiliation(s)
- Bruno Ramos Chrcanovic
- PhD student, Department of Prosthodontics, Faculty of Odontology, Malmö University, Malmö, Sweden.
| | - Tomas Albrektsson
- Retired Professor and former Department Head, Department of Biomaterials, Göteborg University, Göteborg; Guest Professor, Department of Prosthodontics, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Ann Wennerberg
- Professor and Department Head, Department of Prosthodontics, Faculty of Odontology, Malmö University, Malmö, Sweden
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Pellicer-Chover H, Cervera-Ballester J, Peñarrocha-Oltra D, Bagán L, Peñarrocha-Diago MA, Peñarrocha-Diago M. Influence of the prosthetic arm length (palatal position) of zygomatic implants upon patient satisfaction. Med Oral Patol Oral Cir Bucal 2016; 21:e380-4. [PMID: 26946206 PMCID: PMC4867213 DOI: 10.4317/medoral.21033] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 11/01/2015] [Indexed: 11/06/2022] Open
Abstract
Background To assess the influence of the prosthetic arm length (palatal position) of zygomatic implants upon patient comfort and stability, speech, functionality and overall satisfaction. Material and Methods A retrospective clinical study was made of patients subjected to rehabilitation of atrophic maxilla with complete maxillary implant-supported fixed prostheses involving a minimum of two zygomatic implants (one on each side) in conjunction with premaxillary implants, and with 12 months of follow-up after implant loading. Subjects used a VAS to score general satisfaction, comfort and stability, speech and functionality, and the results were analyzed in relation to the prosthetic arm length of the zygomatic implants 12 months after prosthetic delivery. Results Twenty-two patients participated in the study, receiving 22 prostheses anchored on 148 implants (44 were zygomatic and 94 were conventional implants). The mean right and left prosthetic arm length was 5.9±2.4 mm and 6.1±2.7 mm, respectively, with no statistically significant differences between them (p=0.576). The mean scores referred to comfort/retention, speech, functionality and overall satisfaction were high - no correlation being found between prosthetic arm length and patient satisfaction (p=0.815). Conclusions No relationship could be identified between prosthetic arm length (palatal position) and patient satisfaction. Key words:Zygomatic implants, patient satisfaction, zygomatic prosthesis, prosthetic arm length.
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Affiliation(s)
- H Pellicer-Chover
- Universidad de Valencia, Clínica Odontológica, Unidad de Cirugía Bucal, Calle Gascó Oliag, 1, 46021 - Valencia, Spain,
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15
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Anterior sinus grafts for angled implant placement for severe maxillary atrophy as an alternative to zygomatic implants for full arch fixed restoration: technique and report of 5 cases. J Oral Maxillofac Surg 2014; 72:1268-80. [PMID: 24947964 DOI: 10.1016/j.joms.2014.02.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Revised: 02/05/2014] [Accepted: 02/05/2014] [Indexed: 11/22/2022]
Abstract
We report on 5 cases, 4 to demonstrate the anterior sinus graft technique for angled implant placement and 1 comparison zygomatic case, all for immediate function implant restoration despite severe maxillary atrophy. The sinus graft was low volume, with less than 5 mL of bone morphogenetic protein-2/absorbable collagen sponge allograft in a 50% mixture placed against the lateral nasal wall, often in conjunction with implant placement. The importance of the technique is to simplify treatment of severe maxillary atrophy for immediate function to avoid the need for zygomatic implant placement in the vast majority of severely atrophic maxillas.
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